Air Quality Tester with High Precision LED Screen
If you or your kids suffer from Asthma this may be a very helpful tool to keep in your pocket.
- Green orange red three-color digital indicator
- When the green light is on, the air quality is excellent；When the orange light is on, it indicates mild air pollution; When the red light is on, it indicates heavy air pollution.
- High precision laser sensor.
Max Speed: PM2.5 Detector
Control Channels: 2 Channels